Swamp Attack is a mobile tower defense game developed by Moving Eye and published by Outfit7. The player takes control of the game's protagonist, the owner of a decaying house in a swamp, who must protect it from several monsters and opponents that appear as the player progresses. In addition to the shotgun, there are explosives, defensive elements and more weapons available in the store, which can also be unlocked in the levels.

Currently, there are 10 episodes and 222 levels. At the last level of each episode, there will be a boss battle, and every 5 days of each episode the level will be called a "UFO level". There are also challenges Quick missions, which can be played to collect more coins and weapons. The game also includes a multiplayer mode that involves collecting eggs from birds (which contain monsters) and shooting them at opposing players.

Most of the gameplay is explained in the campaign mode. Players must defend a decaying house from several groups of creatures that want to destroy it and eat the house owner's countrymen. Players can use a basic shotgun to kill monsters, but there are also more weapons that can be purchased or unlocked in the levels. In addition to weapons, players can use so-called explosives and a range of elements for defense.

The online store sells all the weapons, explosives and defense elements needed to kill the monsters. The game also has a special element called potion, which the player can use to revive when all the life values are removed or filled with all the energy cells. Players should pay attention to energy, which is a game mechanic used to start the level. If all the cells used for energy are used up, the player must wait or use a potion to fill them all up immediately. The game also includes reapers, peppers used to reload shotguns and slightly speed up shooting.